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<html lang="en">

<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>第五题</title>
    <script>
        var str = 0;
        for (var i = 1; i <= 100; i++) {

            if (i % 3 != 0 && i % 7 != 0) {
                str += i;
                continue;
            }
        }
        console.log(str);
    </script>
</head>

<body>

</body>

</html>